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authorLuiz Augusto von Dentz <luiz.von.dentz@intel.com>2022-10-28 02:18:04 +0300
committerLuiz Augusto von Dentz <luiz.von.dentz@intel.com>2022-12-13 01:19:24 +0300
commit462fcd53924ccc21596d30edd0673fa7c939b392 (patch)
tree698fffb057379e14c7546d457c25295b3be2fc29 /net
parentdb11223571d489d1aab575a4ac4b7352d2d54e2f (diff)
downloadlinux-462fcd53924ccc21596d30edd0673fa7c939b392.tar.xz
Bluetooth: Add CONFIG_BT_LE_L2CAP_ECRED
This adds CONFIG_BT_LE_L2CAP_ECRED which can be used to enable L2CAP Enhanced Credit Flow Control Mode by default, previously it was only possible to set it via module parameter (e.g. bluetooth.enable_ecred=1). Since L2CAP ECRED mode is required by the likes of EATT which is recommended for LE Audio this enables it by default. Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com> Tested-By: Tedd Ho-Jeong An <tedd.an@intel.com>
Diffstat (limited to 'net')
-rw-r--r--net/bluetooth/Kconfig11
-rw-r--r--net/bluetooth/l2cap_core.c2
2 files changed, 12 insertions, 1 deletions
diff --git a/net/bluetooth/Kconfig b/net/bluetooth/Kconfig
index ae3bdc6dfc92..da7cac0a1b71 100644
--- a/net/bluetooth/Kconfig
+++ b/net/bluetooth/Kconfig
@@ -78,6 +78,17 @@ config BT_LE
Bluetooth Low Energy includes support low-energy physical
layer available with Bluetooth version 4.0 or later.
+config BT_LE_L2CAP_ECRED
+ bool "Bluetooth L2CAP Enhanced Credit Flow Control"
+ depends on BT_LE
+ default y
+ help
+ Bluetooth Low Energy L2CAP Enhanced Credit Flow Control available with
+ Bluetooth version 5.2 or later.
+
+ This can be overridden by passing bluetooth.enable_ecred=[1|0]
+ on the kernel commandline.
+
config BT_6LOWPAN
tristate "Bluetooth 6LoWPAN support"
depends on BT_LE && 6LOWPAN
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 9fdede5fe71c..a3e0dc6a6e73 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -45,7 +45,7 @@
#define LE_FLOWCTL_MAX_CREDITS 65535
bool disable_ertm;
-bool enable_ecred;
+bool enable_ecred = IS_ENABLED(CONFIG_BT_LE_L2CAP_ECRED);
static u32 l2cap_feat_mask = L2CAP_FEAT_FIXED_CHAN | L2CAP_FEAT_UCD;